Quantum Logic Gates in Optical Lattices

Gavin K. Brennen; Carlton M. Caves; Poul S. Jessen; Ivan H. Deutsch

Quantum Logic Gates in Optical Lattices

Gavin K. Brennen^*, Carlton M. Caves, Poul S. Jessen, Ivan H. Deutsch

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

662 Citations (Scopus)

Abstract

We propose a new system for implementing quantum logic gates: neutral atoms trapped in a very far-off-resonance optical lattice. Pairs of atoms are made to occupy the same well by varying the polarization of the trapping lasers, and then a near-resonant electric dipole is induced by an auxiliary laser. A controlled-NOT can be implemented by conditioning the target atomic resonance on a resolvable level shift induced by the control atom. Atoms interact only during logical operations, thereby suppressing decoherence.

Original language	English
Pages (from-to)	1060-1063
Number of pages	4
Journal	Physical Review Letters
Volume	82
Issue number	5
Publication status	Published - 1 Feb 1999
Externally published	Yes

Cite this

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AB - We propose a new system for implementing quantum logic gates: neutral atoms trapped in a very far-off-resonance optical lattice. Pairs of atoms are made to occupy the same well by varying the polarization of the trapping lasers, and then a near-resonant electric dipole is induced by an auxiliary laser. A controlled-NOT can be implemented by conditioning the target atomic resonance on a resolvable level shift induced by the control atom. Atoms interact only during logical operations, thereby suppressing decoherence.

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Quantum Logic Gates in Optical Lattices

Abstract

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